Userfox alternatives
TL;DR: 12 companies doing similar work to Userfox in B2B, ranked by how closely they match what Userfox actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Userfox. They are scored on how closely their own description overlaps with Userfox's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Userfox?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| PetaSales | — | Winter 2009 | 2 | Inactive |
| AdThrow | — | Summer 2009 | — | Inactive |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
| Locent | Locent is an automated messaging platform for companies | Summer 2015 | 11 | Inactive |
| Avalanche | Referral program SDK for startups | Winter 2019 | 1 | Inactive |
| Phonic | The best way to collect and analyze voice and video feedback | Winter 2020 | 8 | Acquired |
| BackType | BackType was an analytics company acquired by Twitter in 2011 | Summer 2008 | — | Acquired |
| Mailgun | Email API service. | Winter 2011 | 51 | Acquired |
| TapEngage | Touch-friendly marketing, acquired by Dropbox | Summer 2011 | 2 | Acquired |
| ShopWith | ShopWith is mobile QVC for GenZ. | Summer 2018 | 3 | Inactive |
Is Userfox still active?
Userfox is no longer listed as active, so anyone still relying on it should plan a migration to one of the alternatives above.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Userfox. They are then ranked on how closely their own description overlaps with Userfox's, so the closest matches come first rather than whoever happens to share a tag.